Stack Exhaustion Vulnerability in HAProxy by HAProxy Technologies
CVE-2018-20103

7.5HIGH

Key Information:

Vendor

Haproxy

Status
Haproxy
Vendor
CVE Published:
12 December 2018

What is CVE-2018-20103?

A vulnerability exists in the dns.c component of HAProxy that can lead to stack exhaustion due to improper handling of compressed pointers. An attacker may exploit this issue by sending crafted packets that cause infinite recursion or generate a long chain of valid pointers. This results in resource exhaustion and can compromise the stability of the HAProxy service, potentially leading to denial of service.

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References

http://www.securityfocus.com/bid/106280
vdb-entryx_refsource_BID
https://usn.ubuntu.com/3858-1/
vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHBA-2019:0326
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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